TOTOLINK X2000R formWsc command injection

published 2025-06-03 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16745

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 14.0%; EPSS 14.0% chance of exploitation in 30 days, percentile 96%
public exploits: 0; none known

A vulnerability has been found in TOTOLINK X2000R 1.0.0-B20230726.1108 and classified as critical. This vulnerability affects unknown code of the file /boafrm/formWsc. The manipulation of the argument peerRptPin leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 17 mo ago (2025-06-03)

Exploit prediction

13.95% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/fizz-is-on-the-way/Iot_vuls/blob/main/X2000R/RCE_formWsc/RCE_formWsc.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

TOTOLINK X2000R

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

github.com /fizz-is-on-the-way/Iot_vuls/blob/main/X2000R/RCE_formWsc/RCE_formWsc.md
exploit, third-party-advisory
vuldb.com /?id.310918
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.310918
signature, permissions-required, vdb-entry
vuldb.com /?submit.584660
third-party-advisory, vdb-entry
totolink.net /
product

Sources

CVE List CVE-2025-5504
NVD CVE-2025-5504

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary